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Rail Pad

A rail pad, also called rail rubber plate, is designed between the rail tie plate and foot of the rail, made by an elastic polyurethane mat, which is interposed between steel rails and tie sleepers to protect the sleeper top from wearing and impacting. Its defined stiffness is used to increase the elasticity of the superstructure of the ballast and reduce shock and vibration in the rail system. With such upgraded load distribution, it will lead to greater passenger comfort and less wearing onto the superstructure. The strengthened elasticity effects positively onto the wear of the superstructure items and rolling stock. It’s always fastened within a fastening system by screw spikes or rail bolts into the sleeper ties. The reason why rail pad made up of rubber or plastic is to dampen the shocks or vibration of a passing train. Usually the starting stiffness is designed a little low in order that the relative deformation under the spring clip toe loads is substantial, which can guarantees the rail pad maintaining in close contact with the rail in spite of any vertical movements of the latter.
Workshop of rail pad rail pad production process

The rail pad laid under the rail is used to guarantee: Production of Rail Pads
rail pad productions

AGICO is equipped with rail pad production lines for 130sets of machines, for the whole process of injection, refining rubber, sulfuration, moulding and inspection, etc. We own the most engineers for rail pad development, design, production and inspection, with annual production capacity reaching up to 2000, 000 pieces. What’s more, rail pads for high speed rail lines are our featured products, including both the elastic rubber plates and height adjustment pads.
AGICO rail pad
Elastic rubber plates for High-speed Railways
high speed railways rail pad elastic rubber rail pad two holes rail pad

Height adjustment pads for High-speed Railways
high adjustment rail pad
Rail pads for Normal Railways
A range of high-performance elastic rail pads have been developed for stiffness requirements and various application areas-from trams through standard gauge railways to heavy haul lines, this especially suitable for E-type rail fastening systems and SKL-type rail fastening system with material of HDPE/EVA/Rubber, the following parameters for reference.

HDPE
No. Technical Parameter Unit Technical Requirement Value
1 Density    g/cm3 0.95-0.98 0.95
2 Tensile Strength Mpa ≥19 19
3 Elongation % >80 150
4 Melting Point 170-190 190
5 Insulation Resistance Ω ≥1×1010 3.5 ×1010
6 Hardness A ≥98 98(A)

EVA: Polyethylene 80%, Vinyl Acetate 20%
No. Technical Parameter Unit Technical Requirement Value
1 Density g/cm3 0.95-0.98 0.95
2 Tensile Strength Mpa ≥15 16
3 Elongation % >500 550
4 Melting Point 170-190 170
5 Insulation Resistance Ω ≥1×1010 5.0 ×1010
6 Hardness A ≥90 92(A)

Rubber
No. Technical Parameter Unit Value
1 Stiffness KN 90-130
2 Hardness Shore A 72-80degree
3 Electronic Resistance Ω ≥ 106
4 Tensile Strength before Aging Mpa ≥12.5
5 Elongation before Aging % ≥250
Product List
Specific quality control rules and manuals are available, each steps take quality assurance measure.
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